@Oma_Trisha @process
Been reading up. "Incandescent bulbs exhibit approximately 15% flicker, while some LED bulbs will exhibit more than 75% flicker. Virtually all LEDs that are color changing or PWM dimmable exhibit 100% flicker"

So definitely avoid color changing and dimmable* bulbs. There are bulbs advertised as "flicker-free", and/or Phillips has a category, "EyeComfort"

*dimmable bulbs that use "SWT" instead of "PWR" should be acceptable.
Example:
https://www.amazon.com/Philips-LED-557587-Flicker-Free-EyeComfort/dp/B08667GGJW